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HEALTH MICROBIOLOGY

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(1)

BIO 431

HEALTH MICROBIOLOGY

(2)

D- MICROBIAL DISEASES

TRANSMITTED FROM HUMAN

TO HUMAN

(3)

MICROBIAL DISEASES TRANSMITTED FROM HUMAN TO HUMAN

• I- Airborne Diseases

• II- Diseases Transmitted by Direct Contact

• III- Sexually Transmitted Diseases

(4)

I) Airborne Diseases

• Streptococcal Diseases

• Diphtheria (diphteria)

• Whooping cough, pertussis

• Tuberculosis, Leprosy (Leprosy = Leprosy)

• Meningitis, Meningococemia

(5)

I) Airborne Diseases

• Measles

• Mumps (Mumps)

• Rubella (Rubella)

• Chickenpox (Chickenbox = varicella), Zoster (Shingles = Shingles)

• Colds, Influenza (Flu)

• SARS

(6)

I) Airborne Diseases

Aerosol - SneezingAerosol - Sneezing

Droplet diameter: 10μDroplet diameter: 10μmm

1-2 microorganisms / virion1-2 microorganisms / virion

Droplet SpeedDroplet Speed

Sneezing: 100 m / sSneezing: 100 m / s

Cough / Shout: 16-48m / sCough / Shout: 16-48m / s

10,000–100,000 min / droplet in a 10,000–100,000 min / droplet in a trapping

trapping

Source of Microorganisms in Source of Microorganisms in the Air

the Air

SoilSoil

PlantPlant

AnimalAnimal

HumanHuman

– Gram (+) and (-) – endospor

– Cell Wall Waxy Structure

•Mostly Gram (+) bacteria and viral origin

(7)

Bacterial Respiratory Infections

• Streptococcal Diseases

• Diphtheria

• Pertussis

• Tuberculosis, Leprosy

• Meningitis, Meningococemia

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